Product data

Clarity Visual Systems
September 1997
12
Cleaning the Screen
The screen’s lenticular pattern is sensitive to smudges and scratches. To clean smudges from
the screen, use a soft cloth and a non-abrasive, non-hydrocarbon cleaner. Wipe the screen
from top to bottom, or vertically (in the direction of the lenticular pattern).
Cleaning the Mirrors
The WN-5220-V’s optical mirrors can become dusty in normal operation, particularly if the
operating environment is dusty. When the WN-5220-V is serviced, these mirrors may also
accumulate accidental smudges and fingerprints. Dust and smudges on the mirrors can
seriously degrade the WN-5220-V’s performance, so these should be removed as soon as
possible.
Use an inert dry dusting gas or dry, filtered compressed air to remove dust from the mirrors.
To remove smudges, use an optical grade lens cleaning spray (such as OCLI Thin Film
Cleaner) and a disposable commercial lens tissue. After spraying the cleaner, wipe the
mirror surface with the lens tissue only enough to remove smudges.